PST files are intended for storing mail elements on PCs, which include mail folders and their content. PST stores copies of these elements locally, and they are supported by well-known and common applications, particularly Outlook. Users can get to their emails even when there is no stable IT connection. PSTs can be accessed via whatever version is installed on your PC. Files saved in later versions use Unicode can hold a lot more data than those created in earlier ones, which use ANSI. Users who prefer not to use this program may choose to convert messages to other formats and open them in third party utilities.

PDF file format, developed by Adobe Systems, represents in electronic mode all the elements of a printed document such as text, photos, links, scales, graphs and interactive elements. You can view this document in free Acrobat Reader, navigate through the page or the whole document which is one or more pages usually. PDF format is used to save predesigned magazines, brochures and flyers. Whenever you need to view it, print or send the layout will be unchangeable.